Intensive plantation forestry will be increasingly important in the next 50 years to meet the high demand for domestic wood in the US. However, forestry management practices can substantially influence downstream water quality and ecology. In this study, the effect of fertilization on drainage water quality of a coastal pine plantation located in Carteret County, NC was studied. The pine planta...

Uses and potential uses of in vitro fertilization are: (1) a research tool for investigating biochemistry of fertilization, (2) an assay for fertilizing ability, (3) a potentially useful clinical approach for certain cases of infertility, and (4) a potentially useful means for improving animal breeding. In vitro fertilization methodology is sufficiently advanced for gametes of several mammalian...

Evidence implicating the involvement of carbohydrates in fertilization has been reported for decades in species which span the phylogenetic scale. The exact nature and role of these ligands in fertilization, however, has eluded investigators. Here, such investigations are reviewed as they relate to mammalian fertilization, with the principle focus on reviewing the role of carbohydrates involved...

Fish larvae experience major cellular and biochemical changes during their early life stages.The aim of the present study was to evaluate alterations in the antioxidant status and values oflipid peroxidation and vitamin C content during the different life developmental stages ofHypophthalmichthys molitrix. Eggs and larvae were sampled at fertilization, organogenesis,eyed egg, hatch, active feed...

improvements on embryo micromanipulation techniques led to the use of embryo biopsy in commercial embryo transfer programs for genetic analysis of preimplantation bovine embryos. the aim of this study was to evaluate the quality of bovine blastocyst derived from embryos biopsied at different precompacted morulae stages by assessment of cryosurvivability of the resulting blastocysts. the in vitr...

conclusions the present study showed that vitrification using cryotop and freezing medium can damage oocytes by reducing the maturation and fertilization rates in both developmental stages. results vitrification caused a significant reduction in the maturation rate of oocytes. of those that matured, the fertilization rate of vitrified ivm-mii (44.1%) and ov-mii oocytes (50%) was not significant...

there has been a dramatic rise in the use of assisted reproductive technologies (art), including in vitro fertilization (ivf) throughout the world over the past three decades. because they represent >1% of the birth cohorts in many developed countries, much attention is being paid to the health and well-being of art children. children born after assisted reproductive techniques (art) have an in...

the main factors affecting pregnancy and implantation rates are uterine receptivity, embryo quality, and transfer efficiency. embryo transfer (et) is the last step of critically important procedure of in vitro fertilization (ivf) and probably the least successful step in assisted reproductive technology (art) treatment cascade; though simple in most of the cases, it may pose to be the most diff...